class merge_objs{
       private $classArr = array();
       function __construct() {
           $this -> classArr = func_get_args();
       }
        function __get($s) {
            foreach($this-> classArr as $c) {
                if (property_exists($c, $s)) {
                    return $c -> $s;
                }
            }
        }
        function __call($fn,$args) {
            foreach($this-> classArr as $c) {
                if (method_exists($c, $fn)) {
                    return call_user_func_array(array($c,$fn),$args);
                }
            }
        }
    }
    
   //测试
    class a1 {
        public $a = 'a';
        public function a() {
            return 'a';
        }
    }

    class b1 {
        public $b = 'b';
        public function b() {
            return 'b';
        }
    }

    class c1 {
        public $c = 'c';
        public function c() {
            return 'c';
        }
    }
    
    $m = new merge_objs(new a1(),new b1(),new c1());

    var_dump($m->c); //c
    var_dump($m->b); //b
    var_dump($m->a); //a
    var_dump($m->a()); //a
    var_dump($m->b()); //b
    var_dump($m->c()); //c